What’s Vulnerable › Vulnerabilities

CVE-2022-4886: Ingress-nginx `path` sanitization can be bypassed with `log_format` directive

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-25 · updated 2026-06-17
• Weakness: CWE-20

Description

Ingress-nginx `path` sanitization can be bypassed with `log_format` directive.

Affected products

• Kubernetes ingress-nginx: before 1.8.0 — fixed in 1.8.0

How to fix

Upgrade to a fixed version: Kubernetes ingress-nginx 1.8.0. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2023/10/25/5
• https://github.com/kubernetes/ingress-nginx/issues/10570
• https://groups.google.com/g/kubernetes-security-announce/c/ge7u3qCwZLI
• https://security.netapp.com/advisory/ntap-20240307-0013/
• http://www.openwall.com/lists/oss-security/2023/10/25/5
• https://github.com/kubernetes/ingress-nginx/issues/10570
• https://groups.google.com/g/kubernetes-security-announce/c/ge7u3qCwZLI
• https://security.netapp.com/advisory/ntap-20240307-0013/

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